Yes I`m aware that this got suggested a ton of times, but lets be honest it could save lifes.

So thats how edit could work:

Say you write a message and make some mistakes , you could simply go and edit it. But you would have a limit. After you wrote your message you would have 50 seconds to edit it , making it perfect to correct simple grammar mistakes etc ...

Staff would be able to see the Edit History of a message. They would just need to click a button that will apear next to a message called ` Show Edit History ` And here they would get the old message.